femara 2.5 and fingers crossed

Brittany
So I went to the doc on 3/21 to check and see if the femara was working, ultrasound was donw and the doctor came in and said well looks like you have 3 eggs in your left ovary ans you. Could possibly have twins of everything goes right. On the 21st 2 of my eggs was 1.2 I was told to have sex the 23rd and 25th lay for 30 mins with my hips propped up. I've been feeling really yucky and tired but I don't really know when to take a test because I don't have regular periods. Any advice?