Sofy Side Walls Sanitary Pads XL Pack of 2

Yes it is safe to use. You can also think of menstrual cups. They are very easy and better than pads.

From your description chances are practically nil but anytime if period is missed no harm in getting pregnancy test done.

Menstrual cups are safe to use and are generally not painful while you insert them. It is possible that you might have a little issue while inserting it initially, but once you are habitual, the process becomes smooth. Also, the majority of women don't even feel their cups once they are inside the vagina. This happens because these cups are made up of flexible silicone that matches the body temperature of a woman. Also, a menstrual cup avoids other conditions such as skin rashes or the burning sensation that generally occurs due to the use of pads.

Sanitary pads are not supposed to be sterile like medical syringes etc, so if they have crossed the expiry date, they could be used. But as a precaution, why not use a fresh pack? or one withing the expiry period. You may call the company's help line to know more of the pads in question. Home made pads can also be used if money is the concern about using pads beyond their expiry date.

If you are sexually active and are not using any regular contraception I would advice you to do a urine pregnancy test first. If negative then get a thyroid function and Hb done. If these are normal and your cycles continue to be regular but scanty then it is important to exclude pelvic infection including tuberculosis.