Help!

Myself and my partner have been trying for our second baby for 2 years and 10 months, we have a 3.5 year old little girl and she is very stubborn and she causes a lot of stress for us.

How can you possibly get pregnant with a toddler around!

This was my most recent chart and I took a digital pregnancy test this morning and it’s negative. Is it too early to come back positive or?

Thanks

Sincerely a desperate mummy