OBGYN/Deductible Payemnts

Jesmarie • 19 years old with rainbow baby on the way! 9/30/2017 ❤️
So I have an appointment today and I have to pay a certain amount each month until July.. The last time I went in for my appointment they asked me if I could make a payment then, but I had to make a payment two days later because I got paid two days later.. 
I have an appointment today & HOPEFULLY they'll still allow me to see my doc because I've been able to make like small payments here and there, I won't get paid again until this Thursday so maybe if I tell them I can call and pay then they'll allow it. They allowed it the last time so they should allow me to pay two days later correct?