Hi dr, Im a 34 years old lady, married for 8 yrs. I'm trying to conceive for my second baby. I did ultrasound for follicular growth. On 12th day there was a left follicle of size 16 mm with 9 mm endometrium and no POD fluid. On 14th day, left follicle was of 19 mm with 10 mm endometrium and no POD fluid. I need to undergo another ultrasound on 16th day. My cycle is 28-34 days. My question is when will the follicle rupture? When ovulation might happen. Which might be the day to inter course to conceive? M not under any medication. My first child is 6 years old.