S/M, Namaskar! My wife is using ocp since last 4 yrs after our son. She left it before 1 yr. From then the MC is irregular. Last round it's in 2.5 month. As per OG spl advice took some medicine and mc done. Then the last lmp is on 6th March 2018. On 10th may I did ptk with preganews and found negative. Then on 10th June I did the same and it's positive. Consulted the OG and he said featus may be of 1 to 1.5 months. Advised for a HSG abdomin. Should I go for it. Can it say exactly the lmp and Edd. How can I know my wife is in which months of pregnancy. Plz advice. Can I start iron folic acid with calcium.