Can you help me with dd?

My lmo was 14th March.

My cycles haven’t been regular as I’m 4 months pp.

I was supposed to ovulate between 1st and 6th April apparently according to my app.

We bd on 31st march and then not until 11th.

I was really ill my week of expected ovulation so no bd happened.

I cannot work out my due date or how far pregnant I am. I have a couple of apps which say different and I’m very confused!

Any help would be great. Thanks